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HOME > J Korean Soc Coloproctol > Volume 16(2); 2000 > Article
Original Article
Preoperative Concurrent Chemoradiotherapy in Locally Advanced Rectal Cancer.
Kim, Nam Kyu , Sohn, Seung Kok , Min, Jin Sik , Sung, Jin Sil , Noh, Jae Kyung
Journal of the Korean Society of Coloproctology 2000;16(2):93-98

1Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.
2Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Korea.
3Department of Medical Oncology, Yonsei University College of Medicine, Seoul, Korea.
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Abstract

PURPOSE
Preoperative concurrent chemoradiation for locally advanced rectal cancer can reduce tumor volume and can eliminate viable tumor cells at surgical margin (lateral or posterior margin). It also achieve a rate of high resectability, and negative margin and also have been known to be a safe treatment modality even though its fatal complication was reported as 4%. The aim of this study is to analyze its efficacy and complications after concurrent chemoradiation treatment for advanced rectal cancer.
METHODS
We recruited a total thirty three patients with locally advanced rectal cancer, which were staged preoperatively as T3 or T4 and multiple enlarged lymph nodes by Transrectal Ultrasonography or pelvic Magnetic Resonance Image between march 1996 and June, 1998. 5 Fluorouracil 450 mg/m2 and leucovorin 30 mg infused intravenously during the first and fifth weeks of radiation therapy (4500~5040 cGy). Surgical resection was performed after four or six weeks after completing radiation therapy. To follow up tumor response, digital rectal examination and transrectal ultrasonography were done every two weeks.
RESULTS
Tumor level was distal (N=16, 48.4%), middle (N=9, 27.2%) and upper (N=8, 24.4%). mean age was fifty two years old. Overall resectability was 91%. Types of operations were abdominoperineal resection (N=10, 30.3%), Low anterior resection (N=8, 24.2), Hartmann (N=8, 24.2%), Posterior exenteration (N=2. 6.1%), Total pelvic exenteration (N=2, 6.1%), colostomy only (N=3, 9.1%). Tumor response was Complete remission (N=3,10%), Partial response (N=17, 57%), Non-response (N=10, 33%), progressive disease (N=3). Pathological status was No residual tumor (N=3, 10%), T2N1 (N=5, 16.6%), T3N0 (N=6, 20%), T4N0 (N=4, 13.3%), T2N1 (N=1, 3.3%), T3N1 (N=11, 36.6%). Downstaging status was as follows: from T3 to T0 (N=2), to T2 (N=3) and From T4 to T0 (N=1), to T2 (N=3), to T3 (N=3). Postoperative morbidity was noted in 2 patients (1 case of anastomotic leakage, 1 case of wound infection).
CONCLUSIONS
Preoperative concurrent chemoradiation therapy for locally advanced rectal cancer can be performed safely and show high tumor response and resectability.

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